Another great design by Matti from Stadler Form. Aquila is less than 10 inches in size and compact enough for a nightstand, end table, desk or kitchen counter. It is capable of dispersing 1 gallon of cool, comfortable moisture per day and covers rooms and spaces sized up to 250 square feet. Unlike humidifiers that boil water or require distilled water to operate, ultrasonic humidifiers vibrate water at an extremely high frequency, releasing tiny droplets that form an ultra fine fog in the air. It is equipped with Ionic Silver Cube and demineralization cartridge, which cleans the water and prevents white dust.